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Wellness Foods + Supplements 1/2022

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Wellness Foods & Supplements is the first European magazine devoted exclusively to health ingredients, nutraceutical foods and beverages. Questions about the trade magazine Wellness Foods & Supplements? Interested in subscribing or advertising? The board of editors at Wellness Foods & Supplements kindly remains at your disposal.

Minerals in sports

Minerals in sports nutrition The function of minerals for athletes Calcium Calcium is a bivalent metal and corresponds to 1.5 % of the human bodyweight. 1 About 99 % of the amount is bound in bones and teeth. Together with phosphate, it is of high importance for their stability. 10 The body uses the Calcium stores in the bones as a reservoir. Additionally, Calcium plays a key role in regulating various processes in neural transmission, as well as in the haemostasis, the stabilisation of cell membranes and the regulation of metabolism-processes. 9 Furthermore, Calcium is responsible for all muscle contractions via the transmission of stimuli from the neural system to the muscle cell. A deficiency has an impact on the maximum tension capacity during strength training. Symptoms like a rising excitability of the muscle or cramps can be the consequence. 10 Magnesium Since Magnesium is an activator of all reactions involving ATP (Adenosine Triphosphate), it is of high importance to physical performance. 1 The body of a 70 kg adult, contains 20–28 grams of Magnesium. In combination with Calcium, about 60 % of Magnesium is stored in the bones as hydroxyapatite. The remaining Magnesium can be found to 35 % in intracellular and to 5 % in extracellular solution. 10 The Magnesium is used for growth and stabilization of bones. Additional functions are to be an essential cofactor of more than 300 enzymes in the metabolism, support of muscle contraction, synthesis of proteins and nucleic acids as well as the release of hormones and neurotransmitters. Magnesium is a catalyzer for ATP-dependant enzyme systems and therefore part of the energy-metabo lism. Together with Potassium, Calcium and Sodium it is necessary for the transition of chemical into mechanical energy in the muscles. Magnesium is the counterpart of Calcium. While Calcium is responsible for passing on the stimulus to the muscle, Magnesium closes the ion channel again and prevents the continuous tensioning of the muscle. 1 A deficiency (hypomagnesemia) hampers the appropriate relaxation mechanism of Magnesium and can cause spasms and tensions in muscles. Other signs and symptoms of hypomagnesemia include anything from mild tremors and generalized weakness to vascular spasms of heart and blood vessels and cardiac arrhythmia. Hypomagnesemia can be innate or occur due to reduced resorption, increased excretion or medication but in the most common cases due to insufficient supply. 11 In Germany alone, 26 % of men and 29 % of women do not reach the daily amount of magnesium recommended by the D-A-CH reference values. 11 In addition to a diet low in Magnesium, sporting activity is also a factor that can lead to an undersupply. During intensive sporting activity, a high proportion of Magnesium is lost, especially through sweat. 2 This makes a balanced Magnesium intake vital, especially for athletes. Potassium More than 90 % of Potassium in the human organism is located in the intracellular medium. 10 As the most important intracellular cation, Potassium is responsible for the maintenance of the intracellular osmotic pressure and it is involved in many metabolic processes as well. 12 Symptoms of a Potassium deficiency are diverse. They vary from apathy, to decreased neuromuscular stimulation, cramps, gastrointestinal complaints, tachycardia, kidney damage, decreased glucose tolerance and 1, 8, 12, 13, 14 cardiac dysfunctions. Athletes can be at risk of Potassium deficiency for multiple reasons. For once Potassium is closely bound to the glycogen metabolism. During the metabolisation of glycogen, Potassium is set free, which is in turn needed for the resynthesis. 1 Moreover, Potassium is lost through increased sweating during long strains. 10,12 Especially endurance athletes prone to heavy perspiration should therefore be advised to consume additional Potassium. 15 Iron Iron is the most important trace element in the human organism, with body stores of 3–5 g. 10 Nutritional Iron is available as haem Iron and ionised Iron, respectively Fe (II) and Fe (III). 16 Iron is a central component of red blood cells. Without Iron, the blood could not transport oxygen and supply the muscles. In the muscle, it is present as the central component of myoglobin in order to transport oxygen into the heart and skeletal muscle tissue. It acts as an antioxidant and is an important component of the electron transport chain for the production of ATP. 17 Iron deficiency is associated with altered metabolic processes. Physical manifestations of an iron deficiency are e. g. anaemia, fatigue and weakness, pale skin, brittle nails. In the field of sports nutrition, Iron is regarded as one of the most critical micronutrients 18 and counterintuitively iron deficiency is one of the most commonly diag- 34 No. 1 April/May 2022

Minerals in sports nutrition nosed mineral deficiencies in sports medicine. 19 The high incidence of Iron depletion among athletes is usually linked to an inadequate energy intake. Factors affecting the Iron status are e. g. vegetarian diet, periods of rapid growth, training at high altitudes, increased Iron losses in sweat, and other body fluids. 19 Iron is involved in the transport and metabolism of oxygen for aerobic energy production during endurance exercise. Athletes with suboptimal Iron status may experience reduced exercise capacity and impaired sports performance. 20 Once an iron deficiency has developed, the recovering can take months. 21 The Iron supplementation of iron-deficient athletes improves blood biochemical measures and iron status on the one hand, on the other hand it also increases work capacity as evidenced by increasing oxygen uptake, reduces the heart rate and decreases the lactate concentration during exercise. 18 utes to the protein synthesis and is involved in the adaptation process of training stimuli, process of growth, wound healing and general functions of the immune system. 19 However, a relatively low Zinc status has been observed in many athletes, which is caused by an insufficient intake with food and increased losses through urine and sweat. Continuously high exercise volumes and additional strains induced through the participation in competitions lead to increased Zinc losses. As a result, active athletes generally have higher Zinc requirements. Especially at risk are high endurance athletes, athletes using a hypocaloric diet in order to compete in certain weight classes and vegetarian or vegan athletes. If an increased Zinc intake cannot be achieved through an adjusted diet, supplementation is 1, 10, 19, 22 a sensible remedy. How to find the best mineral salt The choice to the anionic part of a mineral salt is of particular importance. Beside physi cal and chemical properties like solubility, pH-value and taste, anions have also an important influence on the bioavailability Bioactive Collagen Peptides stimulate the body's own collagen metabolism Zinc Zinc is a trace element with a relatively small storage capacity in the human body, compared to Iron. Hence, large quantities of Zinc cannot be mobilised if higher requirements arise. Therefore, a constant intake of Zinc through food or food supplements is indispensable. 10 Zinc fulfils catalytic, structural and regulatory functions in the organism and is involved in more than 300 metalloenzymes, as a co-factor or as an integral part. As Zincdependent enzymes are present in all metabolic areas. It is also involved in almost all life processes and thus also in antioxidative mechanisms. Moreover, Zinc itself has an antioxidative effect, since it is able to bind to various molecules and to protect them against oxidative damage. A Zinc deficiency manifests in a reduced immunological defence, dermatitis, hair loss, and delayed wound healing. 10 Body Toning BODYBALANCE ® Always in Shape ,P- ........ ,,, Bone Health FORTI BONE ® Collagen Matrix Stimulation ,P- ........ ,,,,,,_ Joint Health FORTIGE The Joint Health Revolution ,P- ,,,,,,_ Beauty from Within VERISO Beauty from Within ,P- ........ ,,,,,,_ Immune Health IMMUPEPT" Advancing Immune Health ,,,,,,_ Connective Tissue Improvement TENDOFORTE ® For Connective Strength ,;P ........ __, Zinc plays a particular part in the nutrition of athletes. It is of high importance for physi cal performance as a part of the muscular enzyme system. Furthermore, Zinc contrib- No. 1 April/May 2022 ········· . . .......... ·:-:::-:•.. • Trusted Science ••••••••• ® BIOACTIVE COLLAGEN PEPTIDES Ra.: [!] I: • bit.ly/3f8L 1 CG GELITA AG Uferstr. 7 69412 Eberbach Germany www.gelita.com Gi:LIT-\ Improving Quality of Life

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